How much methane is emitted into the atmosphere each year due to steel making? The answer, surprisingly, seems to be that no one really knows. […]

So the steel sector emits around 3.7 gigatonnes (Gt) of carbon dioxide (CO2) a year (see ‘6%, 7%, 8%, 9%, 10%, 11%…’), and perhaps another 18.3 […]

A few months back I tried to get to the bottom of the wide range of statements about the steel sector’s CO2 emissions. The answer was […]